I can't mount what I believe is a valid FAT partition. (It works fine in ac-source-2.6.9-a2) ac-sources-2.6.9-a5 .config: # DOS/FAT/NT Filesystems CONFIG_FAT_FS=m CONFIG_VFAT_FS=m CONFIG_FAT_DEFAULT_CODEPAGE=437 CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" I noticed ac5 patch made some changes in linux.vanilla-2.6.9/fs/fat/inode.c dmesg shows: FAT: invalid first entry of FAT (0xffffff8 != 0xffffff8) VFS: Can't find a valid FAT filesystem on dev hda5. See: http://www.kernel.org/diff/diffview.cgi?file=%2Fpub%2Flinux%2Fkernel%2Fpeople%2Falan%2Flinux-2.6%2F2.6.9%2Fpatch-2.6.9-ac5.bz2;z=82 Reproducible: Always Steps to Reproduce: 1. 2. 3.
Please report this to Alan Cox and/or LKML.